FR2682996B1 - FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES. - Google Patents

FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES.

Info

Publication number
FR2682996B1
FR2682996B1 FR9212039A FR9212039A FR2682996B1 FR 2682996 B1 FR2682996 B1 FR 2682996B1 FR 9212039 A FR9212039 A FR 9212039A FR 9212039 A FR9212039 A FR 9212039A FR 2682996 B1 FR2682996 B1 FR 2682996B1
Authority
FR
France
Prior art keywords
fuel injection
internal combustion
combustion engines
injection pump
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR9212039A
Other languages
French (fr)
Other versions
FR2682996A1 (en
Inventor
Peter Knorreck
Karl Kirchweger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2682996A1 publication Critical patent/FR2682996A1/en
Application granted granted Critical
Publication of FR2682996B1 publication Critical patent/FR2682996B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
    • F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
    • F02M41/123—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor characterised by means for varying fuel delivery or injection timing
    • F02M41/125—Variably-timed valves controlling fuel passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/16—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps characterised by having multi-stage compression of fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Abstract

a) Pompe d'injection de carburant pour moteurs à combustion interne, b) pompe d'injection de carburant caractérisée en ce que le piston de pompe (10) comporte au moins deux tronçons (31, 34) avec des diamètres différents, tandis que la chambre de travail de la pompe (14) est délimitée dans une première partie (32) de l'alésage cylindrique (11) par la face frontale d'un tronçon (31) du piston de la pompe, et que par une surface annulaire (45) prévue sur la transition entre deux tronçons (31, 34) du piston de la pompe, une chambre de travail annulaire (41) est délimitée dans un second tronçon (35) de l'alésage cylindrique (11). c) L'invention se rapporte aux pompes d'injection de carburant pour moteurs à combustion interne.a) Fuel injection pump for internal combustion engines, b) Fuel injection pump characterized in that the pump piston (10) has at least two sections (31, 34) with different diameters, while the working chamber of the pump (14) is delimited in a first part (32) of the cylindrical bore (11) by the front face of a section (31) of the pump piston, and that by an annular surface (45) provided on the transition between two sections (31, 34) of the pump piston, an annular working chamber (41) is delimited in a second section (35) of the cylindrical bore (11). c) The invention relates to fuel injection pumps for internal combustion engines.

FR9212039A 1991-10-29 1992-10-09 FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES. Expired - Fee Related FR2682996B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4135595A DE4135595A1 (en) 1991-10-29 1991-10-29 FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES

Publications (2)

Publication Number Publication Date
FR2682996A1 FR2682996A1 (en) 1993-04-30
FR2682996B1 true FR2682996B1 (en) 1994-10-14

Family

ID=6443638

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9212039A Expired - Fee Related FR2682996B1 (en) 1991-10-29 1992-10-09 FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES.

Country Status (5)

Country Link
US (1) US5216993A (en)
JP (1) JPH05215032A (en)
DE (1) DE4135595A1 (en)
FR (1) FR2682996B1 (en)
GB (1) GB2261035B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323683A1 (en) * 1993-07-15 1995-01-19 Bosch Gmbh Robert Fuel injection pump
GB9421433D0 (en) * 1994-10-25 1994-12-07 Lucas Ind Plc Rotary fluid pump
DE19860672A1 (en) * 1998-12-29 2000-07-13 Bosch Gmbh Robert Piston pump for high-pressure fuel generation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE704898C (en) * 1938-09-03 1942-09-18 Kloeckner Humboldt Deutz Akt G Fuel injection device for internal combustion engines
US4598683A (en) * 1984-03-15 1986-07-08 Nippondenso Co., Ltd. Fuel injection pump of the distribution type
US4709679A (en) * 1985-03-25 1987-12-01 Stanadyne, Inc. Modular accumulator injector
JPH0315818Y2 (en) * 1986-07-25 1991-04-05
DE3719807A1 (en) * 1987-06-13 1988-12-22 Bosch Gmbh Robert RADIAL PISTON FUEL INJECTION PUMP
DE3722264A1 (en) * 1987-07-06 1989-01-19 Bosch Gmbh Robert FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES
DE3722265A1 (en) * 1987-07-06 1989-01-19 Bosch Gmbh Robert FUEL INJECTION PUMP
DE3840652A1 (en) * 1988-12-02 1990-06-07 Bosch Gmbh Robert FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
DE3844475A1 (en) * 1988-12-31 1990-07-05 Bosch Gmbh Robert FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES, IN PARTICULAR PUMPEDUESE
DE3903313A1 (en) * 1989-02-04 1990-08-09 Bosch Gmbh Robert STORAGE FUEL INJECTION DEVICE
DE3920459A1 (en) * 1989-06-22 1991-01-03 Bosch Gmbh Robert FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
GB8923485D0 (en) * 1989-10-18 1989-12-06 Lucas Ind Plc Fuel pumping apparatus

Also Published As

Publication number Publication date
GB2261035A (en) 1993-05-05
FR2682996A1 (en) 1993-04-30
GB9222505D0 (en) 1992-12-09
JPH05215032A (en) 1993-08-24
DE4135595A1 (en) 1993-05-06
GB2261035B (en) 1994-12-21
US5216993A (en) 1993-06-08

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Legal Events

Date Code Title Description
ST Notification of lapse